ITALIC 8.0

Lecidea turgidula Fr.

Sched. Crit., 1: 10, 1824.

Synonyms: Biatora turgidula (Fr.) Nyl.; Lecidea denudata sensu A. Massal.; Lecidea subglomerella Nyl.; Lecidella turgidula (Fr.) Körb.; Oedemocarpus turgidulus (Fr.) Trevis.

Distribution: N - Ven, TAA (Caniglia & al. 2002, Thor & Nascimbene 2007, 2014, Nascimbene & al. 2007b, 2008c, 2022, Nascimbene 2008b, 2013), Lomb, Piem (Isocrono & al. 2004), Emil (Fariselli & al. 2020), Lig (Giordani & al. 2009, Giordani & Incerti 2008). C - Tosc, Marc (Nimis & Tretiach 1999), Abr (Nimis & Tretiach 1999), Mol (Nimis & Tretiach 1999, Caporale & al. 2008). S - Camp (Aprile & al. 2003b), Bas, Cal (Puntillo 1996, van den Boom & Giralt 2002, Puntillo 2011), Si.

Description: Thallus crustose, often poorly developed and inconspicuous, endosubstratic or thinly granular, whitish or olivaceous grey. Apothecia biatorine, black (bluish black when wet), adnate to partly immersed, 0.2-0.6(-0.8) mm across, with a flat to convex, sometimes thinly white-or bluish-pruinose, often uneven disc (especially when young), and a soon excluded proper margin. Proper exciple of coherent, radiating hyphae, dark greenish brown in outer part, colourless within; epithecium olive-black to blue-green, K+ intensifying green, N+ reddish, with minute granules dissolving in K; hymenium with violet, brownish or greenish vertical streaks reacting K+ green, 30-60 µm high, I+ blue; paraphyses sparingly branched and anastomosing, 1.3-2 µm thick at mid-level, the apical cells not much swollen, but sometimes with a dark brown, to 5 µm wide cap; hypothecium colourless to pale yellowish brown, sometimes orange-brown in upper part. Asci 8-spored, broadly clavate, Lecanora-type. Ascospores 1-celled (rarely a few 1-septate), hyaline, oblong to ellipsoid, 6-10(-14) x 2.5-4.5(-6) μm. Pycnidia black, immersed, the wall green-brown, K+ green. Conidia short-bacilliform, arising laterally and terminally, 3-4 x 1.5-18 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus with placodiolic acid.

Note: on hard lignum, more rarely on bark of conifers; most common in the Alps, but also present in the mountains of Southern Italy, especially in old Castanea-woodlands. According to Printzen (1995) the systematic position of this species is not clear; it certainly does not belong to Lecidea s.str.

Growth form: Crustose

Substrata: bark and lignum

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: rather common

Oromediterranean belt: absent

Montane belt: rare

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: absent

Dry mediterranean belt: absent

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

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3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

D. Puntillo CC BY-SA 4.0

Domenico Puntillo; Owner: Domenico Puntillo